This can signify multiple possibly aspects of your subconscious.
Keep in mind that dreams are what you are thinking about during sleep, this dream you had has some significance to what's on your mind. Like I said it could be a number of things, you take to the darkness and associate well with fire, you could have a very deep fear or hatred for fire, and the possible interpretations keep going.

You are the only one who truly knows what you're thinking, and only you can effectively and accurately interpret your dreams.